🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.53 AU - 0.55 AU

Year: 260 Days

Day: 23.3 Hours

Environment

Temp: -112 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.8

Radius: 9.9

Gravity: 7.58 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.62 AU - 0.74 AU

Year: 368 Days

Day: 10.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,535,021 km

• M1: 123,717 km (0.116 R)
• M2: 446,250 km (0.094 R)
• M3: 808,726 km (0.094 R)
• M4: 1,178,083 km (0.103 R)
• M5: 1,578,407 km (0.106 R)
• M6: 2,069,088 km (0.079 R)
• M7: 2,808,102 km (0.093 R)
• M8: 3,178,207 km (0.12 R)
• M9: 4,134,885 km (0.09 R)
• M10: 4,937,029 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946.1

Radius: 8.5

Gravity: 13.09 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.34 AU - 1.94 AU

Year: 1378 Days

Day: 14.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,535,021 km

• M1: 105,766 km (0.112 R)
• M2: 371,751 km (0.089 R)
• M3: 696,228 km (0.104 R)
• M4: 1,237,324 km (0.067 R)
• M5: 1,969,606 km (0.105 R)
• M6: 2,695,754 km (0.112 R)
• M7: 3,067,953 km (0.119 R)
• M8: 3,933,676 km (0.083 R)
• M9: 4,549,870 km (0.109 R)
• M10: 5,447,457 km (0.071 R)
• M11: 5,763,707 km (0.066 R)
• M12: 6,092,373 km (0.062 R)
• M13: 7,021,526 km (0.104 R)
• M14: 9,348,969 km (0.073 R)
• M15: 9,836,359 km (0.04 R)
• M16: 10,272,587 km (0.076 R)
• M17: 10,547,398 km (0.096 R)
• M18: 10,826,996 km (0.03 R)
• M19: 11,183,638 km (0.119 R)
• M20: 11,695,861 km (0.054 R)
• M21: 13,045,234 km (0.086 R)
• M22: 13,327,226 km (0.089 R)
• M23: 14,197,287 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.6

Radius: 10.3

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.1 AU - 2.24 AU

Year: 2097 Days

Day: 8 Hours

Environment

Temp: -184 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,535,021 km

• M1: 128,056 km (0.119 R)
• M2: 494,271 km (0.111 R)
• M3: 848,968 km (0.045 R)
• M4: 1,281,007 km (0.113 R)
• M5: 1,858,155 km (0.074 R)
• M6: 2,219,584 km (0.115 R)
• M7: 2,587,894 km (0.103 R)
• M8: 2,923,591 km (0.086 R)
• M9: 3,449,428 km (0.104 R)
• M10: 3,893,285 km (0.062 R)
• M11: 4,394,138 km (0.099 R)
• M12: 5,413,349 km (0.099 R)
• M13: 7,350,641 km (0.082 R)
• M14: 7,913,877 km (0.072 R)
• M15: 8,719,761 km (0.071 R)
• M16: 10,012,885 km (0.106 R)
• M17: 10,424,728 km (0.025 R)
• M18: 10,812,186 km (0.09 R)
• M19: 11,879,866 km (0.062 R)
• M20: 13,715,432 km (0.076 R)
• M21: 14,095,560 km (0.092 R)
• M22: 14,569,785 km (0.059 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 790.5

Radius: 4.6

Gravity: 37.36 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 6.68 AU - 7.52 AU

Year: 12411 Days

Day: 17.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 36,535,021 km

• M1: 57,296 km (0.057 R)
• M2: 290,369 km (0.079 R)
• M3: 448,794 km (0.075 R)
• M4: 726,746 km (0.083 R)
• M5: 1,186,311 km (0.102 R)
• M6: 1,686,866 km (0.119 R)
• M7: 2,877,814 km (0.082 R)
• M8: 3,215,008 km (0.04 R)
• M9: 5,413,797 km (0.059 R)
• M10: 5,889,369 km (0.068 R)
• M11: 6,512,444 km (0.045 R)
• M12: 9,447,106 km (0.044 R)
• M13: 9,813,620 km (0.107 R)
• M14: 13,748,344 km (0.094 R)
• M15: 14,561,408 km (0.11 R)
• M16: 15,406,187 km (0.111 R)
• M17: 17,347,519 km (0.055 R)
• M18: 17,660,029 km (0.1 R)
• M19: 19,614,226 km (0.1 R)
• M20: 23,278,027 km (0.109 R)
• M21: 26,953,796 km (0.034 R)
• M22: 29,093,046 km (0.108 R)
• M23: 30,316,607 km (0.106 R)
• M24: 33,104,662 km (0.094 R)
• M25: 34,070,616 km (0.11 R)
• M26: 42,202,906 km (0.078 R)
• M27: 44,057,770 km (0.117 R)
• M28: 47,471,444 km (0.12 R)
• M29: 53,490,514 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 184.2

Radius: 6.9

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 7.14 AU - 7.38 AU

Year: 12833 Days

Day: 20.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,535,021 km

• M1: 85,869 km (0.097 R)
• M2: 390,750 km (0.032 R)
• M3: 885,919 km (0.076 R)
• M4: 1,109,867 km (0.055 R)
• M5: 1,480,869 km (0.072 R)
• M6: 1,932,057 km (0.063 R)
• M7: 2,525,062 km (0.071 R)
• M8: 3,385,101 km (0.076 R)
• M9: 4,752,126 km (0.1 R)
• M10: 5,761,762 km (0.103 R)
• M11: 6,249,750 km (0.085 R)
• M12: 7,051,296 km (0.112 R)
• M13: 7,308,454 km (0.08 R)
• M14: 8,037,894 km (0.049 R)
• M15: 10,999,333 km (0.077 R)
• M16: 13,186,604 km (0.076 R)
• M17: 14,091,072 km (0.078 R)
• M18: 17,852,711 km (0.081 R)
• M19: 20,552,653 km (0.105 R)
• M20: 24,087,651 km (0.094 R)
• M21: 32,233,105 km (0.099 R)
• M22: 34,391,503 km (0.043 R)
• M23: 36,535,091 km (0.065 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 404 - 12,517 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit